Portable power-driven metal roller



y 1941. E. c. BLEVINS 7 2,251,030

PORTABLE POWER-DRIVEN METAL ROLLER Filed Nov. 16, 1959.

Patented July 29, 1941 l'lED STATES Par orric This invention relates to a portable powerdriven metal roller particularly adapted for straightening or removing the dents from the fenders, bodies or other metal surface of automobiles.

It is an object of the invention to provide a tool of the above-mentioned character which includes a dolly in cooperative relation to a reciprocating roller and means for manually adjusting the dolly to regulate the pressure of the same against the work.

A further object of the invention resides in providing a device of the above-mentioned character which is simple and durable in construction, reliable and efficient in operation, and inexpensive'to manufacture.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawing forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same:

Fig. 1 is a side elevation of the tool,

Fig. 2 is a longitudinal section of the housing showing the driving mechanism for the roller, and

Fig. 3 is a vertical section taken on line 33 of Fig. 1.

In the drawing, wherein for the purpose of illustration I have shown a preferred embodiment of the invention, the numeral denotes an elongated hollow casing having its forward end bifurcated to form a slot 6 adapted to slidably receive the cross head I, are provided with dovetail shaped ribs 8 which engage in correspondingly shaped grooves 9 in the sides of the cross head to guide the movement of the cross head when reciprocated. A plate It extends across the end of the slot 6 which limits the forward movement of the cross head. A fork I I depends from the cross head to support the roller I2 which is journaled in the fork by the shaft I3. A connecting rod I4 extends longitudinally of th casing 5 having one end pivotally connected to the cross head 6, as at I5, and its opposite end connected to the drive gear it by the eccentric I1. The drive gear I6 is mounted on the shaft I8 and is in mesh with the worm I9 on the shaft which through bevel gears 2I and 22 is connected to the shaft 23 of the electric motor 24 mounted in the housing 25 formed integral with the casing 5. Th starting and stopping of the motor is controlled by an electric switch 26.

The sides of the slot A'hand rest21 is mounted in straddling relation to the. casing 5 having ears 28 extending along the sides of the casing and pivotally connected: thereto. by pivot pins 29. Th ears 28 are pivotally connected by link 39 to the forward end of the rocker member 3| which is pivotally suspended beneath the rear end of the casing 5 by ears 32 pivotally attached to the sides of the casing by pivots 33. The rear end of the rocker member 3I is provided with a socket 34 to receive one end of the 0 arm 35 which is secured in the socket bya setscrew 36. The free endof the arm 35 is disposed beneath the path of movement of the roller I 2 and is provided with a socket 31 adaptedto slidably receive the bearing block 33 which pivotally supports the dolly 39 for cooperative action with the roller I2. A heavy coil. spring III) disposed in the socket 31. beneath the bearing block 38 yieldably supports the dolly in a raised position, and it will be seen the dolly is free to move in the directionof travel of the roller. The dolly is interchangeably mounted so thatdiiferent shaped dollies may be used for performing work of various kinds.

. In operation, the Work is inserted between the roller I2 and dolly :39 and upon starting the motor 24 the drive gear I8 is rotated to impart a reciprocating movement to the connecting rod I4, thus reciprocating the cross head 1 in the slot 6 to move the roller I2 back and fourth across the work. By pressing down on the hand rest 21 the rocker member 3| is actuated to swing the arm 35 so the pressure of the dolly 39 against the work may be regulated. The tool being light in construction may be easily ported from place to place, and in practice it is found sheet metal parts of an automobile may be easily and eificiently worked upon to remove dents and other irregularities without the exercise of more than ordinary mechanical skill.

It is to be understood that the form of my invention herein shown and described is to be taken as a preferred example of the same, and that certain changes in the shape, size, and arrangement of the parts may be made without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim:

1. A portable metal rolling tool comprising an elongated casing forming a hand grip, a cross head mounted to reciprocate longitudinally in said casing, a roller suspended from said cross head, an arm pivotally connected to the inner end of said casing having its free end disposed beneath the path of movement of said roller,

a dolly supported by the free end of said arm for cooperative action with said roller, means for reciprocating said cross head, and means for swinging said arm to move said dolly towards and from said roller.

2. A portable metal rolling tool comprising an elongated casing forming a hand grip, a cross head mounted to reciprocate longitudinally in said casing, a roller suspended from said cross head, an arm pivotally connected to the inner end of said casing having its free end disposed beneath the path of movement of said roller, a dolly supported by the free end of said arm for cooperative action with said roller, a hand lever mounted on said casing for moving said arm to move said dolly towards and from said roller, and means for reciprocating said cross head.

3. A portable metal rolling tool comprising anelongated casing forming a hand grip, a cross head mounted to, reciprocate. longitudinally. in said casing, a roller suspended from said cross head, means for reciprocating said. cross head, an arm pivotally connected to the inner end of said casing having its'free end disposed beneath the path of movement of said roller, a dolly pivotally mounted in the free end of said arm for cooperative action with said roller, yieldable means normally urging said dolly towards said roller, and means for swinging-said lever to move the free end towards and from said roller to control the pressure of said dolly.

4. A portable metal rolling tool comprising an elongated casing forming a hand grip, a cross head mounted to reciprocate longitudinally in said casing, a roller suspended from said cross head, means for reciprocating said cross head, a rocker member pivotally attached to the inner end of said casing, an arm having one end attached to said rocker member and its free end disposedfor movement towards and from said roller, a dolly yieldably mounted in the free end of said arm for cooperative action with said roller, and a hand lever pivotally mounted on said casing having connection with said rocker member for actuating said member to swing said arm to control the pressure of said dolly.

5. A portable metal rolling tool comprising an elongated casing forming a hand grip, a reciprocating cross head mounted in one end of said casing, a roller suspended from said cross head, means for reciprocating said cross head, a rocker member pivotally attached to said casing, a 0 arm having one end attached to said rocker member and its free end disposed for movement towards and from said roller, a bearing block yieldably mounted in the free end of said arm for vertical movement, a dolly pivotally mounted in said bearing block for swinging movement in the direction of travel of said roller, a hand lever pivotally mounted on said casing, and links connecting said hand lever to said rocker member whereby the rocker member is actuated by said handlever to swing said arm to adjust the pressure of said dolly.

6. A portable metal rolling tool comprising an elongated tubular casing forming a hand grip, said casing being bifurcated at its forward end to receive, a slidably mounted cross head, a roller suspended from said cross head, mechanism Within said casing for imparting a reciprocating movement to said cross head, a rocker member pivotally mounted intermediate its ends to the underside of the rear end of said casing, a 0 arm having one end fixedly attached to one end of said rocker member and its opposite end disposed beneath the path of movement of said roller and movable towards and from said roller, a bearing block slidably mounted in the free end of said arm for vertical movement, a spring mounted beneath said bearing block yieldably supporting said bearing block in a raised position, a dolly pivotally mounted in the top of said bearing block extending upwardly therefrom, a hand lever pivotally mounted on the upper side of said casing, and links connecting one end of said hand lever to the end of said rocker member whereby the rocker member is actuated by said hand lever to swing said arm to adjust the pressure of said dolly.

EDGAR CLAY BLEVINS. 

